The strains in the global axes of a 30deg ply are given as


1. The stresses in the global axes of a 30° ply are given as σx = 4 MPa, σy = 2 MPa, and τxy = -3 MPa. Find the stresses in the local axes. Are the stresses in the local axes independent of elastic moduli? Why or why not?

2. The strains in the global axes of a 30° ply are given as εx = 4 μin./ in., εy = 2 μin./in., and γxy = -3 μin./in. Find the strains in the local axes. Are the strains independent of material properties? Why or why not?

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Mechanical Engineering: The strains in the global axes of a 30deg ply are given as
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